3 * Copyright (c) 2002, 2003 Fabrice Bellard
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 #include "bytestream.h"
27 static int pnm_encode_frame(AVCodecContext *avctx, unsigned char *outbuf,
28 int buf_size, void *data)
30 PNMContext *s = avctx->priv_data;
32 AVFrame * const p = (AVFrame*)&s->picture;
33 int i, h, h1, c, n, linesize;
34 uint8_t *ptr, *ptr1, *ptr2;
36 if (buf_size < avpicture_get_size(avctx->pix_fmt, avctx->width, avctx->height) + 200) {
37 av_log(avctx, AV_LOG_ERROR, "encoded frame too large\n");
42 p->pict_type = FF_I_TYPE;
46 s->bytestream = outbuf;
47 s->bytestream_end = outbuf + buf_size;
51 switch (avctx->pix_fmt) {
52 case PIX_FMT_MONOWHITE:
54 n = (avctx->width + 7) >> 3;
60 case PIX_FMT_GRAY16BE:
80 snprintf(s->bytestream, s->bytestream_end - s->bytestream,
81 "P%c\n%d %d\n", c, avctx->width, h1);
82 s->bytestream += strlen(s->bytestream);
83 if (avctx->pix_fmt != PIX_FMT_MONOWHITE) {
84 snprintf(s->bytestream, s->bytestream_end - s->bytestream,
85 "%d\n", (avctx->pix_fmt != PIX_FMT_GRAY16BE && avctx->pix_fmt != PIX_FMT_RGB48BE) ? 255 : 65535);
86 s->bytestream += strlen(s->bytestream);
90 linesize = p->linesize[0];
91 for (i = 0; i < h; i++) {
92 memcpy(s->bytestream, ptr, n);
97 if (avctx->pix_fmt == PIX_FMT_YUV420P) {
102 for (i = 0; i < h; i++) {
103 memcpy(s->bytestream, ptr1, n);
105 memcpy(s->bytestream, ptr2, n);
107 ptr1 += p->linesize[1];
108 ptr2 += p->linesize[2];
111 return s->bytestream - s->bytestream_start;
115 #if CONFIG_PGM_ENCODER
116 AVCodec pgm_encoder = {
123 .pix_fmts = (const enum PixelFormat[]){PIX_FMT_GRAY8, PIX_FMT_GRAY16BE, PIX_FMT_NONE},
124 .long_name = NULL_IF_CONFIG_SMALL("PGM (Portable GrayMap) image"),
128 #if CONFIG_PGMYUV_ENCODER
129 AVCodec pgmyuv_encoder = {
136 .pix_fmts = (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
137 .long_name = NULL_IF_CONFIG_SMALL("PGMYUV (Portable GrayMap YUV) image"),
141 #if CONFIG_PPM_ENCODER
142 AVCodec ppm_encoder = {
149 .pix_fmts = (const enum PixelFormat[]){PIX_FMT_RGB24, PIX_FMT_RGB48BE, PIX_FMT_NONE},
150 .long_name = NULL_IF_CONFIG_SMALL("PPM (Portable PixelMap) image"),
154 #if CONFIG_PBM_ENCODER
155 AVCodec pbm_encoder = {
162 .pix_fmts = (const enum PixelFormat[]){PIX_FMT_MONOWHITE, PIX_FMT_NONE},
163 .long_name = NULL_IF_CONFIG_SMALL("PBM (Portable BitMap) image"),